A) \[{{0}^{o}}\]
B) \[{{30}^{o}}\]
C) \[{{45}^{o}}\]
D) \[{{60}^{o}}\]
Correct Answer: D
Solution :
In equilibrium, For mass \[\sqrt{2}m,\,T\,\cos \theta +T\,\cos \theta =\sqrt{2}mg\] ?.(i) And for mass m, \[T=mg\] Putting the value of T = mg in equation (i) we get \[\Rightarrow \] \[2T\,\cos \theta =2mg\,\cos \theta =\sqrt{2}mg\] \[\Rightarrow \] \[\theta =\frac{\pi }{4}\]You need to login to perform this action.
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